| Author |
Message |
    
Matthew Balkwell
Senior Member
Username: matt
Post Number: 134
Registered: 04-2006
| | Posted on Sunday, September 04, 2011 - 12:11 am: | 
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Does anyone know what thread is on the small drain plug under the welsh plug on the rear cylinder?, i was wiping some rusty water away and it just fell out leaving enough in the hole to just leave a small leak.
I think it is the same as all the other small drains[1/8 BSP] but i just want to be sure before i remove whats left of it and drain the engine.
Regards Matt and Ron |
Nicholas Von Fischer
New member
Username: virago
Post Number: 2
Registered: 07-2011
| | Posted on Sunday, September 04, 2011 - 03:52 am: |
|
What makes a 1.5HP Stuart turner engine r
un perfectly starting from cold and then when warm refuse to start ?
Everything is set up OK and have a belting spark from the Lucas Mag
If anyone has any ideas I would be most pleased.
Many thanks
Nicholas}} |
David Myers
Senior Member
Username: dave_myers
Post Number: 108
Registered: 11-2006
| | Posted on Sunday, September 04, 2011 - 07:29 am: |
|
Hi Matt, You are correct with the thread size. It is 1/8 BSP but you may find that the thread and hole have rusted out and you may have to put something a little larger in there. I had to drill mine out and tap to a fitting I had here. Dont recall the exact size though.
Cheers,
Dave. |
David Myers
Senior Member
Username: dave_myers
Post Number: 109
Registered: 11-2006
| | Posted on Sunday, September 04, 2011 - 07:43 am: |
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Nicholas, Hard starting when hot and having a good spark usually indicates low compression, or more so in the Stuart... Worn Crankshaft seals. Join the Stuart Turner Yahoo Group based in the UK. They are a wealth of knowledge. http://groups.yahoo.com/group/stinfoexchange/
Hope this is helpful.
Cheers, Dave |
Matthew Balkwell
Senior Member
Username: matt
Post Number: 135
Registered: 04-2006
| | Posted on Monday, September 05, 2011 - 02:47 am: |
|
Dave thanks for the info, i bought some plugs this morning and one went in about 4 threads before coming against the remnants of the old plug.
I will drill the old one out do a proper fix on the weekend, i will also remove the large plug from the no 1 cylinder and try and de gunk on the cylinder block , any hints?.
once again thanks.
Matt and Ron. |
David Myers
Senior Member
Username: dave_myers
Post Number: 111
Registered: 11-2006
| | Posted on Wednesday, September 07, 2011 - 11:03 pm: |
|
Matt, Be careful when cleaning out the area where that plug came out. The Cylinder wall is right against the plug hole. Make sure it is the remains of the old plug before you drill. I went through the Cylinder wall when I did mine. Thank god I only used a small drill. Silver Solder fixes many stuff ups Hi... You may find the Larger plug hard to remove, I had to gently heat the one on mine and a few good whacks with a block of wood and a hammer.
Good luck with the job, just be careful.
Cheers,
Dave |
Matthew Balkwell
Senior Member
Username: matt
Post Number: 136
Registered: 04-2006
| | Posted on Thursday, September 08, 2011 - 06:49 am: |
|
Dave, thanks for the tip on the small plug, the big plug might be easier as the previous owner has replaced the iron plug with a brass fitting with plumbers tape around it.
I might start up our spare this weekend it runs very smoothly and without a hint of any internal noise, only problem is it leaves about a teaspoon and a half of water in each crankcase after about an hours running, i have not had it running for a few months , the leak may have fixed itself.
regards Matt and Ron |
